Chase Stein, who was also known as Talkback, is a young superhero in Runaways. He was created by writer Brian K. Vaughan and artist Adrian Alphona, and first appears in Runaways vol. 1 #1 with many other characters of the Runaways title. Chase is the son of geniuses Victor and Janet Stein, Chase stole his parents flame generating/manipulating gauntlets called the Fistigons. Later on in volume 2 of Runaways, Chase receives Old Lace from a dying Gert.
Chase, along with Alex Wilder , Nico Minoru, Karolina Dean, Molly Hayes, and Gertrude Yorkes meet up on there parents annual get togethers, where the find out there parents are evil villains called The Pride.
Chase, who is now dating Gert encounter future Gert who came back in time to warn them about a super villain named Victor Mancha.